Re: 6 volt starter with 12 volt system

Posted by gusc on January 17, 2005 at 11:43:58 from (63.97.117.24):

In Reply to: 6 volt starter with 12 volt system posted by Darin S. on January 17, 2005 at 09:54:44:

Andy has it down pat. A motor is rated in watts or hp. Since 745 watts = one hp a one hp motor will only draw 745 wats (basically volts x amps) regardless of the amp/volt mix.
In the case of the 6v starter (motor) it will draw 1/2 the normal amps so it should last forever since the wiring is rated for double the amps now required.

High amps cause wires to heat up, lower amps means cooler wires.

All starters are momentary motors, not rated for continuous output, so ANY starter will burn out if run too long under load.

The opposite case is best illustrated by well known "brownouts" during the summer on the east coast. Voltage drops because of overloaded circuits caused by too many AC being used. When voltage drops AC motors demand full wattage and get it by increasing amps and burning out AC motors.

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